Selection of the correct elastomeric rubber material for your application, be it fluid or environmental sealing, vibration isolation or dampening, impact bumpers, hoses and fluid movement and various other requires the review of numerous factors such as: dynamic or static application, system pressure, chemical compatibility; heat, cold and friction, material cost, design factors, installation practices, use of the product, product projected life and corresponding maintenance frequency.
Elastomer Rubber Compounds Types and References
Elastomer Rubber Compounds Types and References
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Properties
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NR
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SBR
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NBR
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EPDM
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CR
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VMQ
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FKM
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| Hardness Shore A | 30-95 | 40-95 | 40-95 | 30-85 | 30-90 | 40-80 | 50-95 |
| Temp Recistance °C | 75 °C | 85 °C | 100 °C | 130 to °C | 95 °C | 205 °C | 205 °C |
| Max Intermittent °C | 105 °C | 115 °C | 130 °C | 150 °C | 125 °C | 300 °C | 300 °C |
| Low Temp Recistance °C | -60 °C | -55 °C | -20 °C | -50 °C | -35 °C | -60 °C | -20 °C |
| Oxidadation Resistance |  |
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| Ozone and Weathering |  |
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| Oil Resistance | |
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| Alcohol | |
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| Acetone | |
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| Benzen | |
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| Acids | |
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| Bases | |
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| Physical Strength | |
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| Compression Set | |
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| Tear and Abrasion | |
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| Resilience | |
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| Gas Permeability | |
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| Fleme Resistance | |
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| Fleme Resistance | |
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Self-Extinguishing | |
Self-Extinguishing |
| Water Resistance | |
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General Properties of Elastomer Classes & Rubber Compounds:
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Very Good
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Good
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Average
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Poor
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Not Recommended
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Basic Property
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NBR
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HNBR
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EPDM
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FKM
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CR
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ACM
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AEM
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SBR
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AU/EU
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VMQ
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FVMQ
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NR
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| Economy of Material |
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| Compression Set Resistance |
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| Resilience (Rebound) |
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| Tear Strength |
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| Heat Aging Resistance |
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| Ozone Resistance |
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| Resistance to Oil & Grease |
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| Fuel Resistance |
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| Water Swell Resistance |
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| Gas Impermeability |
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| Dynamic Service / Abrasion Res. |
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| High Temperature – Standard | 212 °F | 300 °F | 300 °F | 390 °F | 250 °F | 300 °F | 300 °F | 212 °F | 175 °F | 450 °F | 400 °F | 220 °F |
| High Temperature – Special | 250 °F | – | – | – | – | – | – | – | – | 480 °F | – | – |
| Low Temperature – Standard | -22 °F | – 22 °F | -60 °F | 5 °F | -40 °F | -60 °F | -40 °F | -50 °F | -60 °F | -75 °F | -75 °F | -60 °F |
| Low Temperature – Special | -60 °F | -40 °F | – | -30 °F | – | – | – | – | – | – | – | – |
